Yellow Rain - Radiolab
Not only do I recommend that you listen to this particular show, I would also recommend that you read the comments page on the radio lab wesbite(http://www.radiolab.org/2012/Sep/24/yellow-rain or click on the link above). Wow....
The basic premis of the show: was the yellow stuff falling out of the sky on the Hmong people in the 1970's bee poop or chemical weapons.
I listened to this show while at work, shuffling papers around and I have to say when I took my ear buds out after the show was over, I felt like a changed person. I could no longer tolerate the usual bitchiness around the office about who took the last cup of coffee or some such problem after hearing about the Hmong people.